Phospholipase D from Streptomyces sp. catalyses the transphosphatidylation reaction of various primary and secondary alcohols with natural phosphatidylcholine in an emulsion system in a preparatively useful manner.

Anaerobic production of succinate, a common feature in animals able to sustain anoxia, has seldom been reported in plants. By the use of 1H‐nuclear magnetic resonance spectroscopy we show here that succinate is produced by rice seedlings (Oryza sativa L. cv. Arborio) subjected to anoxic conditions. Starting from levels below I μmol (g fresh weight)−1 in air, after 48 h of anoxia the levels of alanine, succinate and lactate had increased to 23.8, 5.2 and 1.0 μmol (g fresh weight) −1, respectively, in shoot tissues. Succinate was accumulated in shoots, notably in the coleoptiles, but not in roots of the rice seedlings, suggesting its involvement in rice coleoptile elongation under anoxia. Other possible functions of succinate production in rice seedling, an organism highly tolerant to anoxia, are discussed.

The free sterols, the sterol esters and the sterol glycosides of the raw soya and corn oils as well as those of the technical lecithin and the deodorizer distillated of the latter oils were isolated by preparative TLC. The composition of each of the isolated sterol derivatives was determined by GLC and MS. Sitosterol, campesterol, stigmasterol and an unknown sterol with a molecular weight of 428 are contained in almost all of the examined fractions of the soya oil and its refinement byproducts. Dehydrocampesterol is present in the free sterols of the raw soya oil and the soya lecithin. Stigmasterol is contained in the soya deodorizer distillate in high amounts. It was established that cholesterol was present in the sterol esters of the raw soya oil high amounts. Delta7-stigmastenol occurs only in the sterol esters of the latter oil. Sitosterol, campesterol and stimgasterol are the main components of all sterol fractions of the corn oil and its refinement products. Dehydrocampesterol and unknown sterols with molecular weights of 428 are present in the free sterols of the raw corn oil. Some sterol glycosides of the soya and corn lecithin are esterified with the same major fatty acid components of the glycerides, palmitic acid being the main one. The fatty acid compositon of sterol esters of the raw soya and corn oil roughly corresponds to the fatty acid composition of oils.

Chemischer InformationsdienstVolume 4, Issue 34 Natural Products ChemInform Abstract: NEOECHINULINE, A NEW ISOPRENYL-INDOLE METABOLITE FROM ASPERGILLUS AMSTELODAMI GIUSEPPE CASNATI, GIUSEPPE CASNATISearch for more papers by this authorANDREA POCHINI, ANDREA POCHINISearch for more papers by this authorROCCO UNGARO, ROCCO UNGAROSearch for more papers by this author GIUSEPPE CASNATI, GIUSEPPE CASNATISearch for more papers by this authorANDREA POCHINI, ANDREA POCHINISearch for more papers by this authorROCCO UNGARO, ROCCO UNGAROSearch for more papers by this author First published: August 21, 1973 https://doi.org/10.1002/chin.197334435AboutPDF ToolsRequest permissionExport citationAdd to favoritesTrack citation ShareShare Give accessShare full text accessShare full-text accessPlease review our Terms and Conditions of Use and check box below to share full-text version of article.I have read and accept the Wiley Online Library Terms and Conditions of UseShareable LinkUse the link below to share a full-text version of this article with your friends and colleagues. Learn more.Copy URL Share a linkShare onFacebookTwitterLinkedInRedditWechat No abstract is available for this article. Volume4, Issue34August 21, 1973 RelatedInformation

Chemischer Informationsdienst. Organische ChemieVolume 1, Issue 38 Natural Products ChemInform Abstract: ISOLIERUNG VON GERMACREN B,BETA-ELEMEN UND ANDERER KOMPONENTEN AUS DEN BLAETTERN VON HEDERA HELIX R. BERNARDI, R. BERNARDISearch for more papers by this authorC. CARDANI, C. CARDANISearch for more papers by this authorA. GHIRINGHELLI, A. GHIRINGHELLISearch for more papers by this authorA. SELVA, A. SELVASearch for more papers by this author R. BERNARDI, R. BERNARDISearch for more papers by this authorC. CARDANI, C. CARDANISearch for more papers by this authorA. GHIRINGHELLI, A. GHIRINGHELLISearch for more papers by this authorA. SELVA, A. SELVASearch for more papers by this author First published: September 22, 1970 https://doi.org/10.1002/chin.197038416Read the full textAboutPDF ToolsRequest permissionExport citationAdd to favoritesTrack citation ShareShare Give accessShare full text accessShare full-text accessPlease review our Terms and Conditions of Use and check box below to share full-text version of article.I have read and accept the Wiley Online Library Terms and Conditions of UseShareable LinkUse the link below to share a full-text version of this article with your friends and colleagues. Learn more.Copy URL Share a linkShare onFacebookTwitterLinkedInRedditWechat No abstract is available for this article. Volume1, Issue38September 22, 1970 RelatedInformation

Chemischer Informationsdienst. Organische ChemieVolume 1, Issue 6 Heterocyclic Compounds ChemInform Abstract: NEOECHINULIN, EIN NEUER METABOLIT AUS ASPERGILLUS AMSTELODAMI MIT INDOLSTRUKTUR M. BARBETTA, M. BARBETTASearch for more papers by this authorG. CASNATI, G. CASNATISearch for more papers by this authorA. POCHINI, A. POCHINISearch for more papers by this authorA. SELVA, A. SELVASearch for more papers by this author M. BARBETTA, M. BARBETTASearch for more papers by this authorG. CASNATI, G. CASNATISearch for more papers by this authorA. POCHINI, A. POCHINISearch for more papers by this authorA. SELVA, A. SELVASearch for more papers by this author First published: February 10, 1970 https://doi.org/10.1002/chin.197006130Read the full textAboutPDF ToolsRequest permissionExport citationAdd to favoritesTrack citation ShareShare Give accessShare full text accessShare full-text accessPlease review our Terms and Conditions of Use and check box below to share full-text version of article.I have read and accept the Wiley Online Library Terms and Conditions of UseShareable LinkUse the link below to share a full-text version of this article with your friends and colleagues. Learn more.Copy URL Share a linkShare onFacebookTwitterLinked InRedditWechat No abstract is available for this article. Volume1, Issue6February 10, 1970 RelatedInformation

Neoantimycin is an antibiotic obtained from Streptoverticillium orinoci. The antibiotic is related to antimycins and the structure is reported.

Ants communicate via large arrays of pheromones and possess expanded, highly complex olfactory systems, with antennal lobes in the brain comprising up to ∼500 glomeruli. This expansion implies that odors could activate hundreds of glomeruli, which would pose challenges for higher-order processing. To study this problem, we generated transgenic ants expressing the genetically encoded calcium indicator GCaMP in olfactory sensory neurons. Using two-photon imaging, we mapped complete glomerular responses to four ant alarm pheromones. Alarm pheromones robustly activated ≤6 glomeruli, and activity maps for the three pheromones inducing panic alarm in our study species converged on a single glomerulus. These results demonstrate that, rather than using broadly tuned combinatorial encoding, ants employ precise, narrowly tuned, and stereotyped representations of alarm pheromones. The identification of a central sensory hub glomerulus for alarm behavior suggests that a simple neural architecture is sufficient to translate pheromone perception into behavioral outputs.

Trisporic-C acid is the major component of a biologically active acidic fraction isolated from submerged cultures of Choanephora trispora. On the basis of the chemical and spectrochemical data and synthesis, structure I′—a monocyclic trienic hydroxyketo acid—has been assigned to the product. Trisporic-B acid differs from the C acid by the absence of an alcoholic hydroxyl group.

A new approach to androsterone and 19-norandrosterone from androst-5-ene-3β-ol-17-one and 19-nortestosterone is described. The synthesis is accomplished by a stereospecific hydroboration of Δ 3 - 5α-steroids.